在Winform中設計圓形按鈕（Design Circular Buttons in WinForm App C#）

using System;
using System.Collections.Generic;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    class CircularButton:Button
    {
        protected override void OnPaint(PaintEventArgs pevent)
        {
            GraphicsPath grPath = new GraphicsPath();
            grPath.AddEllipse(0, 0, ClientSize.Width, ClientSize.Height);
            this.Region = new System.Drawing.Region(grPath);
            base.OnPaint(pevent);
        }
    }
}

之後按照以下設置就可以了

參考視頻鏈接：https://www.youtube.com/watch?v=U6ciI0Gtb44